Lock-hinge.



Nd. 889,834. PATENTED JUNE 2, 1908.

' J. A. WATERS.

LOCK HINGE.

APPLICATION FILED SEPT. 28, 1906.

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UNITED STATES PATENT OFFICE.

JOSEPH A. WATERS, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OFONE-HALF TO JOSEPH MATHY, OF HOT SPRINGS, ARKANSAS.

LO CK-HING-E Application filed September 28, 1906.

T 0 all whom it may concern:-

Be it known that I, J OSEPH A. VVATERs, of Washin ton, in the Districtof Columbia, have invented certain new and useful Improvements inLock-Hinges; and I hereby declare that the following is a full, clear,and exact description thereof, reference being had to the accompanyingdrawings, which form part of this specification.

My invention relates to that class of lock hinges particularly such asare used for shutters which will admit of the shutter be ing securelylocked either when entirely closed, or at any angle or position which itmay be desired to retain the same.

The objects I have in view are to simplify the construction of thelocking devices and render the operation of the shutter more easy andefficient than is now exemplified in the prior art; and to provide meanswhich will prevent the shutter being unseated or lifted from its hingeseither by accident or evil deslgn.

My invention consists in the novel construction and combination ofcertain instrumentalities which will be now fully described and setforth in the claims.

In the accompanying drawings-Figure 1 is a perspective view of the lowerpart of blind and window casing showing the shutter or blind entirelyclosed. Fig. 2 is a horizontal sectional view with the shutter artiallyopen. Fig. 8 is a perspective view 0 the upper half of the bottom hinge.Fig. 4 is a perspective view of the lower half of the lower hinge,showing its preferred form of construction. Fig. 5 is a perspective viewof the latch showing the pawl on its outer end and p operating handle onits inner end.

Referring to the drawings. A represents the casing of the window towhich the lower member of the lower hinge a is secured, and A theshutter or blind carrying the upper member I) of the lower hinge.

As my invention resides in and has reference only to the lower hinge andits adjuncts, I will confine the description solely to those parts. Onthe arm 0 of the lower member of the hinge a is a circular plate (1having a series of tangentially disposed recesses e, on its upper sideor face, which are preferably about one-quarter of an inch in depth andare disposed tangentially of the Specification of Letters Patent.

Patented June 2, 1908.

Serial No. 336,535.

hinge pintle P which rises centrally from the disk and is engaged by theeye E on the u per hinge member. These recesses shou d be disposed atsuch angles with relation to each other and with such special referenceto the varying angles which the pawl will assume in the opening orclosing of the shutter or blind, that the shutter may be locked at anypredetermined or desired position. In the present instance I haveprovided six recesses on plated which will admit of the shutter beingsecurely locked either when entirely closed; when open to its fullestextent, or at any convenient and desired intermediate angle.

In order to impart to both members of the lower hinge additionalsupporting capacity, I preferably cast them with right angle leaves orwings i, 'L.

it represents a rocking-shaft which extends through the shutter and isprovided at its outer end with a locking dog 9 and at its inner end withoperating handle k which latter enables it to be conveniently andquickly turned, and thus to easily throw the dog g in or out ofengagement with any one of the recesses desired.

m represents a' metal plate or guard secured to the inner side of theshutter (after the same is mounted) in such position that it will traveljust beneath the circular plate (1, thus affording a complete safeguardagainst the removal of the shutter either by casual or intended means.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

The combination with a shutter hinge, the stationary part thereof havinga circular disk on its arm around the hinge pivot; of a removablelocking plate adapted to be secured to the shutter adjacent said disk,with its end projecting toward and adapted to travel beneath thecircular disk and to prevent the shutter from being lifted off the hingepivot, substantially as described.

In testimony that I claim the foregoing as my own, I affix my signaturein presence of two witnesses.

JOSEPH A. WATERS. Witnesses:

MARY OOLBURN, M. A. SOHEELE.

